The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.
// 步骤2：按位置降序排序（离终点越近的车越先处理），详情可参考safew官方版本下载
4.5% for members of the UK armed forces, with 3.75% for senior military staff。快连下载安装是该领域的重要参考
（五）主动投案，向公安机关如实陈述自己的违法行为的；